FS

Full Stack Developer

at FlashX Security Solutions GmbH
Salary Not Disclosed
Frankfurt
Posted on November 6, 2025

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The Story Behind the Role

Given the role fills a critical gap between frontend and backend, what are some of the most significant cross-functional challenges a developer might face, and how does FlashX foster collaboration to overcome them?

That's a very insightful question, and it really hits the core of what makes this role unique. We're a nimble team, and sometimes the biggest hurdle isn't just the code itself, but ensuring seamless data flow and consistent logic across our React frontend, Laravel backend, and especially the browser extensions. What I've found at FlashX is a culture of open dialogue and direct collaboration. You'll be working shoulder-to-shoulder with our frontend and DevOps specialists, not just handing off tasks. We empower our developers to own problems end-to-end, trusting you to not only identify challenges but also to architect and implement the solutions, knowing that your work directly fortifies our clients' security.

FlashX places a strong emphasis on "Zero knowledge and GDPR compliant by design." How does this commitment to security and compliance actively shape the day-to-day development process for a full-stack developer?

Our 'security by design' isn't just a tagline; it's woven into every line of code we write. For a full-stack developer here, that means every feature, every bug fix, is approached with a security-first mindset. You'll regularly implement secure data logic, handle basic encryption, and ensure robust privacy enforcement. This involves rigorous internal QA, peer reviews focused on potential vulnerabilities, and a constant awareness of compliance standards like ISO 27001. It’s a challenging but incredibly rewarding environment where you're not just building features, you're actively safeguarding sensitive data and preventing identity theft, which gives our work immense purpose.

The job description mentions "potential backend microservices in future phases." Could you elaborate on FlashX's architectural vision and how this role might contribute to shaping the platform's evolution towards a more distributed system?

We're incredibly excited about the future of FlashX. While our Laravel core is robust, the mention of microservices points to our strategic vision for scalability and specialized performance. We envision breaking down certain computationally intensive or highly specialized functionalities into independent services, potentially leveraging technologies like Node.js where they shine. For this role, it's not just about maintaining the existing; it's about growing with us. As you deepen your understanding of the current platform, you'll be instrumental in identifying areas ripe for migration, researching new architectural patterns, and eventually, playing a pivotal role in designing and implementing these next-generation components. Your insights will directly influence how FlashX innovates and expands its capabilities.

Description

FlashX protects small and medium-sized enterprises from identity theft – by far the most common entry point for hackers.

With FlashX, a multi-tenant SaaS Identity and Access Management (IAM) platform from Germany that is already in productive use at numerous SMEs, we prevent stolen login credentials or weak multi-factor authentication (MFA) from causing significant damage. FlashX combines password/access controls, MFA, roles, and audits in an easy-to-use interface. Hosting in the Open Telekom Cloud (Deutsche Telekom) ensures the highest data protection standards and data sovereignty. Zero knowledge and GDPR compliant by design.

Compliance guidelines such as ISO 27001, BSI IT Baseline Protection, NIS2, and KRITIS mandate the use of IAM.

Implementation in minutes – independently or with trusted IT managed service partners.

We're looking for a skilled Full-Stack Developer with strong experience in Laravel (PHP) as the main backend framework, plus knowledge of browser extension development. You will take over the day-to-day development of our platform, including bug fixes, feature rollouts, QA, and small improvements. This role fills a critical gap between our current frontend and backend specialists – acting as the go-to dev for daily updates and ongoing platform evolution.

What You'll Do

  • Handle daily bug fixes, UI tweaks, and feature requests
  • Maintain the Laravel core and connect it with browser extensions
  • Work across backend and frontend (React.js) when needed
  • Implement security features, including basic encryption and compliance logic
  • Assist with in-house QA, testing, and tracking
  • Collaborate with our frontend & DevOps team (React/Angular + Kubernetes/CI)

What You'll Need

  • Deep experience maintaining and building Laravel (PHP) applications
  • Proven experience building or maintaining Chrome/Edge browser extensions
  • Comfortable working with React.js components for frontend development
  • Proficiency with MySQL (Laravel Eloquent ORM)
  • Basic encryption knowledge, capable of handling secure data logic and privacy enforcement
  • Familiarity with Node.js (for potential backend microservices in future phases)
  • Experience with QA testing, bug reporting, and Git
  • Familiarity with CI/CD pipelines, Jira, GitHub, and Agile methodologies
  • TypeScript, Tailwind, or Vue (not core to the stack but beneficial)
  • A Laravel 'pro' who can deliver independently and take ownership
  • Comfortable navigating browser extension APIs
  • Understands security best practices implicitly
  • Ability to start immediately on a contract basis

Our Culture

The company culture at FlashX emphasizes robust security and data protection, operating with a strong focus on cross-functional collaboration and independent problem-solving. It offers opportunities for technical growth through continuous platform evolution and future architectural developments, all within a high-impact, security-first environment.

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